1. Jigme Dorji Wangchuck National Referral Hospital Thimphu Bhutan
2. Kidu Mobile Medical Unit His Majesty’s People’s Project Thimphu Bhutan
3. Faculty of Postgraduate Medicine Khesar Gyalpo University of Medical Sciences of Bhutan Thimphu
4. Central Regional Referral Hospital Gelegphu Bhutan
5. Department of Preventive and Social Medicine Faculty of Medicine Chulalongkorn University Bangkok Thailand
6. Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA